TPM has a breakdown of the four leading national polls, all of which show Obama back in the lead this week:
• Gallup: Obama 48%, McCain 45%, with a ±2% margin of error. Yesterday, the candidates were tied 46%-46%.
• Rasmussen: Obama 50%, McCain 45%, with a ±2% margin of error, compared to an Obama lead yesterday of 49%-46%.
• Hotline/Diageo: Obama 49%, McCain 42%, with a ±3.2% margin of error, compared to a 47%-43% Obama lead yesterday.
• Research 2000: Obama 48%, McCain 43%, with a ±3% margin of error. Yesterday, Obama was up 49%-43%.
• Adding these polls together and weighting them by sample sizes, Obama is ahead by a margin of 48.9%-44.5%, almost double his margin from yesterday's 47.7%-45.3%.
Now, watching national polls is a little bit silly since we don't elect our President by way of a national electyion, but by an electoral college administered by the states, but ti's still a little comforting to see the national mood swing back in Oabama's favor.